Magnetic white dwarfs from SDSS DR2 and DR3

DOI

Fifty-two magnetic white dwarfs have been identified in spectroscopic observations from the Sloan Digital Sky Survey (SDSS) obtained between mid-2002 and the end of 2004, including Data Releases 2 and 3. Although not as numerous or diverse as the discoveries from the first data release, the collection exhibits polar field strengths ranging from 1.5 to ~1000MG and includes two new unusual atomic DQA examples, a molecular DQ, and five stars that show hydrogen in fields above 500MG. The highest field example, SDSS J2346+3853, may be the most strongly magnetic white dwarf yet discovered. Analysis of the photometric data indicates that the magnetic sample spans the same temperature range as for non-magnetic white dwarfs from the SDSS, and support is found for previous claims that magnetic white dwarfs tend to have larger masses than their non-magnetic counterparts. A glaring exception to this trend is the apparently low-gravity object SDSS J0933+1022, which may have a history involving a close binary companion.

Cone search capability for table J/AJ/130/734/catalog (New SDSS magnetic white dwarfs (tables 1 and 2 of paper))

Identifier
DOI http://doi.org/10.26093/cds/vizier.51300734
Source https://dc.g-vo.org/rr/q/lp/custom/CDS.VizieR/J/AJ/130/734
Related Identifier https://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/130/734
Related Identifier https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/130/734
Metadata Access http://dc.g-vo.org/rr/q/pmh/pubreg.xml?verb=GetRecord&metadataPrefix=oai_b2find&identifier=ivo://CDS.VizieR/J/AJ/130/734
Provenance
Creator Vanlandingham K.M.; Schmidt G.D.; Eisenstein D.J.; Harris H.C.,Anderson S.F.; Hall P.B.; Liebert J.; Schneider D.P.; Silvestri N.M.,Stinson G.S.; Wolfe M.A.
Publisher CDS
Publication Year 2008
Rights https://cds.unistra.fr/vizier-org/licences_vizier.html
OpenAccess true
Contact CDS support team <cds-question(at)unistra.fr>
Representation
Resource Type Dataset; AstroObjects
Discipline Astrophysical Processes; Astrophysics and Astronomy; Natural Sciences; Observational Astronomy; Physics; Stellar Astronomy